Motion Control Solutions: VFDs, Servo Systems & Electric Actuators
When a machine needs to move faster, position more accurately, or operate more efficiently, every component has to fit the application.
ellITek helps OEMs, machine builders, system integrators, and manufacturers choose and source variable frequency drives, servo systems, electric actuators, linear motors, gearboxes, and positioning technologies for new equipment, machine upgrades, and motion-control challenges.
Based in Knoxville, elliTek pairs manufacturer-backed products with practical application support across Tennessee and the surrounding region.
We don't build machines.
We support the people who do.
Already have a part number? Send it to us. Still defining the application? Start with the load, speed, stroke, cycle rate, environment, and control platform.
Tennessee Motion Control Products & Application Support
Start With What You Need the Machine to Do
Sometimes you know exactly which drive or actuator you need. Other times, you only know that a machine needs to move differently.
You may need to:
Regulate the speed of a conveyor, pump, fan, or process motor.
Move a load to several programmable positions.
Improve positioning accuracy or repeatability
Coordinate multiple machine axes
Replace an obsolete drive, motor, actuator, or controller
Align motion components with an existing PLC and industrial network
The right answer may be a VFD, servo system, electric actuator, linear motor, gearbox, or a combination of technologies.
Motion Control Products elliTek Supports
Variable Frequency Drives
A variable frequency drive, or VFD, controls an AC motor by adjusting the frequency and voltage supplied to it. This gives engineers greater control over motor speed, acceleration, deceleration, and torque.
VFDs are commonly used in conveyors, pumps, fans, mixers, material-handling equipment, and other applications that require adjustable motor speed. In appropriate variable-torque applications, controlling motor speed may also reduce energy consumption.
Selecting the right VFD requires more than matching horsepower. Important considerations include:
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Motor nameplate data
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Input voltage and phase
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Load and overload requirements
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Acceleration and deceleration time
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Braking requirements
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Enclosure and operating environment
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Control method and feedback
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PLC and network compatibility
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Functional safety requirements
Explore Siemens drives and motion-control products or speak with elliTek about your motor application.
Servo Drives and Servo Motors
Servo systems provide closed-loop control of position, speed, and torque. Feedback from the motor or load allows the system to correct its movement and achieve the repeatability required by demanding machine applications.
Servo motion is often used for:
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Indexing
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Registration
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Cut-to-length operations
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Coordinated machine axes
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High-speed positioning
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Automated assembly
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Robotics
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Printing and converting equipment
A complete servo solution may include a servo drive, motor, feedback device, controller, cables, gearbox, and the appropriate machine-safety functions.
Electric Actuators
Electric actuators convert motor rotation into controlled linear movement. They can provide programmable positions, speeds, acceleration profiles, and force control without relying on compressed-air or hydraulic infrastructure.
Electric actuators can be a strong fit when an application requires:
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More than two stopping positions
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Repeatable positioning
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Recipe-based changeovers
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Adjustable motion profiles
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Process data and diagnostics
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Controlled pressing, pushing, lifting, or clamping
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Reduced dependence on plant air
The right actuator depends on required force, stroke, speed, acceleration, orientation, duty cycle, accuracy, available space, and environmental conditions.
elliTek supports electric actuator and positioning technologies from manufacturers including IAI America, Tolomatic, LinMot, and other motion-control partners.
Linear Motors
Linear motors generate direct linear movement without converting rotary motion through a screw, belt, or mechanical transmission.
They are often considered for applications requiring high acceleration, dynamic response, smooth motion, frequent changes, or flexible motion profiles. Available technologies can also support washdown, stainless-steel, and hazardous-location applications when appropriately selected.
Motion Controllers and Automation Platforms
Motion components must communicate with the rest of the machine.
Motion controllers, PLCs, distributed I/O, HMIs, and industrial networks coordinate commands, feedback, alarms, recipes, diagnostics, and safety functions across the automation architecture.
elliTek helps engineering teams evaluate how drives, actuators, motors, controllers, and networks will fit together before components are selected.
Learn more about factory automation systems and industrial networking technologies.
Precision Gearboxes and Rotary Positioning
Gearboxes help match motor speed and torque to the mechanical load. They can also improve the mechanical fit between a servo motor and an application.
Available technologies include planetary, worm, cycloidal, and strain-wave gearing, along with rotary index tables and other precision power-transmission products.
A Better Way to Select Motion-Control Products
1. Tell us what you are trying to accomplish
Send a part number, machine description, performance goal, motor nameplate, drawing, or summary of the problem.
2. We ask the practical questions
Depending on the technology, those questions may include:
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What needs to move?
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What are the load, force, and torque requirements?
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How far and how fast must it move?
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What accuracy and repeatability are required?
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How frequently will the motion occur?
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What are the mounting orientation and space constraints?
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What power is available?
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Which PLC, network, or controls platform is being used?
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Are washdown, hazardous-location, temperature, dust, or contamination conditions involved?
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How will operators and maintenance personnel interact with the equipment?
3. We help narrow the options
elliTek helps compare applicable technologies, identify compatibility concerns, and determine which manufacturer resources should be involved.
4. We support the next step
That may include product selection, sourcing, technical documentation, manufacturer coordination, troubleshooting conversations, or training recommendations.
elliTek is a distributor and technical support partner. We do not replace your machine builder or system integrator; we help your team make more informed product and platform decisions.
Common Motion Control Applications
Motion control technologies are used in applications requiring precise positioning, speed control, and coordinated movement, including:
These applications often require a combination of factory automation, safety, networking, and controls technologies.
Motion-Control Manufacturers
elliTek’s motion-control portfolio includes products from established industrial manufacturers. The goal is not to force one product line into every application. It is to help determine which technology best fits the machine, operating environment, controls architecture, and long-term support plan.
Local Motion-Control Support for Tennessee Manufacturers
elliTek is based in Knoxville and supports OEMs, machine builders, system integrators, manufacturers, and industrial operators across East and Middle Tennessee and surrounding portions of the region.
Areas served include Knoxville, Nashville, Chattanooga, the Tri-Cities, and other nearby manufacturing communities, including parts of Southern Kentucky, Western North Carolina, and Southwest Virginia. Product availability and authorized territories may vary by manufacturer.
Local support matters when you need someone who understands the application, can ask the right technical questions, and can coordinate with the appropriate manufacturer resources.
Motion-Control Training and Technical Resources
Selecting the right technology is only part of a successful motion-control strategy. Engineers and maintenance teams also need the knowledge to configure, operate, diagnose, and support it.
elliTek hosts technical training that includes Siemens SITRAIN courses covering drive systems and other industrial automation technologies. Additional training and workshop options are available for automation, robotics, industrial networking, and connected manufacturing topics.
Motion Control FAQs
What is industrial motion control? Industrial motion control is the coordinated use of controllers, drives, motors, actuators, feedback devices, and mechanical components to regulate movement within a machine or production system. It may control speed, torque, position, acceleration, or multiple axes of movement.
What is the difference between a VFD and a servo drive? A VFD is commonly used to regulate the speed and torque of an AC motor. A servo drive typically operates as part of a closed-loop system with motor feedback, making it better suited to applications requiring precise position, speed, or torque control. The correct choice depends on the load, accuracy, response, and machine requirements.
When should I consider an electric actuator instead of a pneumatic cylinder? An electric actuator may be a better fit when the machine requires multiple programmable positions, adjustable speed, controlled acceleration, repeatable force, recipe changes, or motion data. Pneumatic cylinders can remain practical for simple point-to-point movements. The best choice depends on the application, cycle rate, load, environment, and available utilities.
What information is needed to select an electric actuator? Helpful information includes the required force or load, stroke, speed, acceleration, accuracy, repeatability, duty cycle, mounting orientation, available space, operating environment, power supply, controls platform, and communication requirements.
Can elliTek help replace an obsolete drive, motor, or actuator? elliTek can help review the existing component, application requirements, control architecture, and available alternatives. A replacement may require changes to sizing, wiring, communications, programming, mechanical dimensions, or safety functions, so early application review is important.
Does elliTek build or integrate motion-control systems? No. elliTek is an industrial automation distributor and technical support partner. elliTek supplies motion-control products and supports product selection, sourcing, troubleshooting conversations, training, and manufacturer coordination for OEMs, machine builders, system integrators, and manufacturers.
Where does elliTek provide motion-control support? elliTek supports customers across East and Middle Tennessee and surrounding portions of Southern Kentucky, Western North Carolina, and Southwest Virginia. Coverage can vary by manufacturer and product line.
Tell Us What Needs to Move
You do not need a finished specification to start the conversation.
Send elliTek a part number, motor nameplate, machine drawing, application description, or the basic motion requirements. Helpful details include:
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Load, force, or torque
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Stroke or travel
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Speed and acceleration
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Cycle rate or duty cycle
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Required accuracy and repeatability
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Available voltage and power
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PLC or industrial network
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Mounting orientation
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Environmental conditions
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Existing equipment being replaced
Whether you are designing new equipment, upgrading an existing machine, or troubleshooting a motion problem, elliTek can help you identify the next practical step.
Have a part number? Include it with your message. Have only a rough application description? That is a good place to start, too.